Graco X5 Operation Operation Manual page 27

Troubleshooting
Problem
Pump does not prime.
312001G
Cause
Prime/Spray Valve is in SPRAY
position.
Inlet screen is clogged or suction
tube is not immersed.
Pump was not primed with
flushing fluid.
Inlet valve check ball is stuck.
Inlet valve check ball or seat is
dirty
Outlet valve check ball is stuck.
Suction tube is leaking.
Pump does not prime with fluid.
Solution
Turn Prime/Spray Valve to PRIME
position (pointing down).
Clean debris off inlet screen and
make sure suction tube is
immersed in fluid.
Remove suction tube from paint.
Prime pump with water or
solvent-based flushing fluid, page
10.
Remove suction tube and place a
pencil into the inlet section to dis-
lodge the ball, allowing pump to
prime properly. OR Power Flush
sprayer, page 19.
AutoPrime may need replace-
ment. Turn power switch ON and
listen for "tap" in pump. If you do
not hear "tap", AutoPrime is dam-
aged. Take sprayer to Graco/M
authorized service center.
NUM
Remove inlet fitting. Clean or
replace ball and seat.
ProX7 and ProX9: Insert screw
driver in slot and remove
™
Easy-Access door, page 7.
Unscrew outlet valve with a 3/4 in.
socket. Remove and clean
assembly.
X5 and X7: Remove outlet fitting
and clean outlet check ball.
Tighten suction tube connection.
Inspect for cracks or vacuum
leaks.
Remove suction tube from paint.
Prime pump with water or sol-
vent-based flushing fluid.
-
AG
27